Large slide-resistant pile reinforcement cage and hoisting system thereof

Abstract

The utility model relates to the technical field of reinforcement cages, and provides a large slide-resistant pile reinforcement cage and a hoisting system thereof. The large slide-resistant pile reinforcement cage comprises a plurality of strands of vertical main reinforcements and a plurality of stiffening hoops; the at least four lifting point assemblies are symmetrically arranged in the circumferential direction of the stiffening hoop; the lifting point assembly comprises a lifting ring and a reinforcing piece; the two ends of the lifting ring are respectively welded and fixed with the two vertical main reinforcements, and the bottom surface of the arched arc part of the lifting ring is flush with the bottom surface of the stiffening hoop; the reinforcing pieces are connected to the upper ends and the lower ends of the stiffening hoops. The lifting rings and the reinforcing pieces are symmetrically arranged in the circumferential direction of the stiffening hoops, so that the bottom surfaces of the arched arc parts of the lifting rings are flush with the bottom surfaces of the stiffening hoops, it is guaranteed that the lifting rings and the stiffening hoops of the reinforcement cage are stressed at the same time in the lifting process, and the lifting safety is improved. The reinforcing pieces are connected to the upper end and the lower end of the stiffening hoop, so that the stress of the stiffening hoop meets the requirement when the reinforcement cage is erected.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel cages, and in particular relates to a large anti-sliding pile steel cage and a hoisting system thereof. Background Art

[0002] At present, in the construction of large anti-sliding pile steel cage hoisting, it is common to clamp the reinforcing hoop of the steel cage with a clamp, and hoist it by connecting the steel wire rope with the clamp. Since the size and mass of the anti-sliding pile steel cage are significantly different from those of the structural pile steel cage, there are serious safety hazards in hoisting with the reinforcing hoop of the steel cage as the lifting point. Later, some construction units improved the construction plan and used steel wire rope to directly bind the vertical main reinforcement and reinforcing hoop of the anti-sliding pile at the same time, and hoisted it through the force transmission of the vertical main reinforcement. However, due to the large size and heavy weight of the anti-sliding pile steel cage, it is difficult to meet the requirements by hoisting with two lifting points. Generally, four lifting points arranged with braces are used for hoisting. In the process of rotating the steel cage from horizontal to vertical, only two steel wire ropes are stressed or one steel wire rope is stressed, which causes the steel cage to deform and there are safety hazards in hoisting. Utility Model Content

[0003] In view of the above problems in the prior art, the present application proposes a large anti-sliding pile steel cage and its hoisting system, which effectively solves the safety problems existing when using the steel cage reinforcing hoops as hoisting points for hoisting.

[0004] In the first aspect, the utility model proposes a large anti-sliding pile steel cage, comprising a plurality of vertical main bars and a plurality of stiffening hoops; further comprising at least four hanging point assemblies symmetrically arranged along the circumference of the stiffening hoops; the hanging point assemblies comprising hanging rings and stiffening members; the two ends of the hanging rings are respectively welded and fixed to the two vertical main bars, and the bottom surface of the arched circular arc portion of the hanging rings is flush with the bottom surface of the stiffening hoops; the stiffening members are connected to the upper and lower ends of the stiffening hoops.

[0005] Furthermore, both ends of the lifting ring are fully welded to the vertical main reinforcement, and the starting point of welding is the end point of the arc portion of the lifting ring.

[0006] Furthermore, the reinforcement member includes a plurality of short steel bar heads; one short steel bar head is welded to the upper end and the lower end of the reinforcing hoop respectively, and the short steel bar heads are also welded to the vertical main reinforcement.

[0007] Furthermore, the large anti-sliding pile reinforcement cage also includes a plurality of sonic detection tubes; the sonic detection tubes are arranged on the inner side of the reinforcing hoop.

[0008] Furthermore, the large anti-sliding pile reinforcement cage also includes an inner support member, which is supported and connected to the inner side of the reinforcing hoop.

[0009] On the second aspect, the utility model also proposes a large-scale anti-slip pile steel cage hoisting system, including the above-mentioned large-scale anti-slip pile steel cage, and also including a main crane main hook, multiple main hoisting steel ropes, a horizontal hoisting beam, a main crane auxiliary hook and a balancing hoisting steel rope; one of the main hoisting steel ropes passes around the horizontal hoisting beam suspended under the main hook of the main crane, and is connected to two symmetrical hoisting point assemblies; the remaining main hoisting steel ropes are connected to the main crane main hook and the remaining hoisting point assemblies; a balancing hoisting point is arranged on the vertical main reinforcement of the large-scale anti-slip pile steel cage; the balancing hoisting steel rope connects the balancing hoisting point and the main crane auxiliary hook.

[0010] Furthermore, the lifting system also includes an auxiliary lifting wire rope and an auxiliary crane main hook; an auxiliary lifting point is also arranged on the vertical main reinforcement of the large anti-sliding pile reinforcement cage; the auxiliary lifting wire rope connects the auxiliary crane main hook and the auxiliary lifting point.

[0011] Furthermore, the suspension point assembly, the balance suspension point and the auxiliary suspension point are sequentially spaced apart along the length direction of the large anti-sliding pile reinforcement cage.

[0012] The beneficial effects of the utility model are as follows: by arranging the lifting ring and the reinforcement piece symmetrically in the circumferential direction of the reinforcement hoop, the bottom surface of the arched arc portion of the lifting ring is flush with the bottom surface of the reinforcement hoop, ensuring that the lifting ring and the reinforcement hoop of the steel cage are stressed at the same time during the lifting process, thereby improving the lifting safety. By connecting the reinforcement piece at the upper and lower ends of the reinforcement hoop, it is ensured that the stress of the reinforcement hoop meets the requirements when the steel cage is erected, and deformation due to insufficient strength is avoided, thereby solving the safety problem existing in the prior art of using the reinforcement hoop of the steel cage as a lifting point for lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the large anti-sliding pile reinforcement cage of the utility model.

[0014] Figure 2 This is a large-scale drawing of a hanging point assembly of the large anti-sliding pile reinforcement cage of the utility model.

[0015] Figure 3 It is a schematic diagram of a large anti-sliding pile reinforcement cage in a horizontal state of the large anti-sliding pile reinforcement cage hoisting system of the utility model.

[0016] Figure 4 for Figure 3 Schematic diagram of a large anti-slide pile reinforcement cage being hoisted to an inclined state.

[0017] Figure 5 for Figure 4 Schematic diagram of a large anti-slide pile reinforcement cage being hoisted to an upright state.

[0018] In the figure: 1-vertical main reinforcement; 2-stiffening hoop; 3-short steel bar head; 4-lifting ring; 5-sound detection tube; 6-internal support; 7-main lifting wire rope; 8-horizontal lifting beam; 9-balance lifting wire rope; 10-main crane auxiliary hook; 11-auxiliary lifting wire rope; 12-auxiliary crane main hook; 13-main crane main hook; 14-balance lifting point; 15-auxiliary lifting point. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1-2 The large anti-sliding pile steel cage shown includes multiple vertical main bars 1 and multiple reinforcing hoops 2, which are connected to form an existing conventional anti-sliding pile steel cage structure. Different from the existing steel cage structure, the steel cage of this embodiment also includes at least four suspension point assemblies symmetrically arranged along the circumference of the reinforcing hoop 2. In this embodiment, there are four suspension point assemblies, which are distributed at four positions of a reinforcing hoop 2 at the uppermost end of the steel cage. Each suspension point assembly includes a suspension ring 4 and a reinforcement member.

[0021] HPB300 round steel is used to make a U-shaped lifting ring 4, which is welded to the two vertical main bars 1 of the steel cage. Both ends of the lifting ring 4 are overlapped and fully welded to the vertical main bars 1, and the starting point of the welding must reach the starting point of the arched arc portion of the lifting ring 4, which is also the end point of the arc portion, to avoid the free end of the lifting ring 4 being too long, resulting in lifting or deformation under lateral force when the steel cage is not erected.

[0022] The bottom surface of the arched arc portion of the lifting ring 4 is flush with the bottom surface of the reinforcing hoop 2, ensuring that the lifting ring 4 and the reinforcing hoop 2 of the steel cage are stressed at the same time during the lifting process, thereby improving the lifting safety.

[0023] The reinforcement member includes four short steel bar heads 3; Figure 1 As shown, in the two vertical main bars 1 connected to the lifting ring 4, a short steel bar head 3 is welded to the upper and lower ends of each vertical main bar 1 located at the reinforcing hoop 2, and the short steel bar head 3 is also welded to the vertical main bar 1. The length of the short steel bar head 3 is not less than 10 cm, and the short steel bar head 3 is welded together with the vertical main bar 1. The bottom of the upper short steel bar head 3 supports the top of the reinforcing hoop 2, and the top of the lower short steel bar head 3 supports the bottom of the reinforcing hoop 2, so as to ensure that the force of the reinforcing hoop 2 meets the requirements when the steel cage is erected, and will not be deformed due to insufficient strength of the reinforcing hoop 2 and the vertical main bar 1 of the steel cage due to the spot welding method.

[0024] The large anti-sliding pile reinforcement cage further includes an inner support member 6 and three acoustic detection tubes 5 ; the inner support member 6 and the acoustic detection tubes 5 are both arranged on the inner side of the reinforcing hoop 2 .

[0025] Based on the same inventive concept, Figure 3-Figure 5As shown, a large anti-sliding pile steel cage hoisting system proposed by the present invention includes the above-mentioned large anti-sliding pile steel cage, and also includes a main crane main hook 13, multiple main hoisting wire ropes 7, a horizontal hoisting beam 8, a main crane auxiliary hook 10, a balancing hoisting wire rope 9, an auxiliary hoisting wire rope 11 and an auxiliary crane main hook 12; one main hoisting wire rope 7 passes through the horizontal hoisting beam 8 suspended below the main crane main hook 13 and is connected to two symmetrical hoisting point assemblies; the remaining main hoisting wire ropes 7 connect the main crane main hook 13 and the remaining hoisting point assemblies; a balancing hoisting point 14 and an auxiliary hoisting point 15 are arranged on the vertical main reinforcement 1 of the large anti-sliding pile steel cage; the hoisting point assembly, the balancing hoisting point 14 and the auxiliary hoisting point 15 are sequentially spaced along the length direction of the large anti-sliding pile steel cage. The balancing hoisting wire rope 9 connects the balancing hoisting point 14 and the main crane auxiliary hook 10. The auxiliary hoisting wire rope 11 connects the auxiliary crane main hook 12 and the auxiliary hoisting point 15.

[0026] The hoisting method of the large anti-slide pile steel cage hoisting system is as follows:

[0027] After the steel cage is transported to its destination, it is placed horizontally on the padded ground to ensure the stability of the steel cage.

[0028] A U-shaped clamp is installed at the position of the lifting point assembly, and the U-shaped clamp clamps the lifting ring 4 of the lifting point assembly and the stiffening hoop 2 at the lifting ring 4, and three main lifting wire ropes 7 are hung on the main hook 13 of the main crane, two of which are directly connected to two symmetrical lifting point assemblies of the anti-sliding pile steel cage, and another main lifting wire rope 7 bypasses the horizontal lifting beam 8 and is connected to the other two symmetrical lifting point assemblies of the steel cage. Among them, the horizontal lifting beam 8 is suspended below the main hook 13 of the main crane.

[0029] The auxiliary hook 10 of the main crane is hung with two balancing hanging steel wire ropes 9, which are respectively connected to the two balancing hanging points 14 of the steel cage, and the main hook 12 of the auxiliary crane is hung with two auxiliary hanging steel wire ropes 11, which are respectively connected to the auxiliary hanging points 15 of the steel cage.

[0030] The main hook 13 of the main crane, the auxiliary hook 10 of the main crane and the main hook 12 of the auxiliary crane are lifted at the same time, and the state of the steel cage is adjusted according to the actual situation so that the steel cage remains on a horizontal plane. When the steel cage is lifted about 0.5 meters from the ground, check the conditions of the crane and each wire rope, and proceed to the next step only if they meet the requirements.

[0031] The main hook 13 of the main crane and the auxiliary hook 10 of the main crane continue to rise, and the main hook 12 of the auxiliary crane maintains the existing height unchanged (or adjusts the height in real time), so that the steel cage is in a straight line under the cooperation of the auxiliary hook 10 of the main crane and the main hook 12 of the auxiliary crane to avoid deformation of the steel cage.

[0032] As the above steps continue, the steel cage is completely erected, and at this time the balance hanging wire rope 9 and the auxiliary hanging wire rope 11 are completely relaxed, and the auxiliary hanging wire rope 11 can be taken out.

[0033] Rotate the steel cage to the position of the anti-slip pile hole, and have 2 to 4 people hold the steel cage to make it stable and not swing. After aligning it with the hole, start lowering the steel cage. When the steel cage is lowered to the balance hanging point 14 about 1.5 meters away from the hole, take out the balance hanging wire rope 9, and then continue to lower the steel cage until the steel cage is in place, and finally take out the main hanging wire rope 7 and the U-shaped clamp.

[0034] It should be noted that the nature of the anti-sliding piles determines the geographical location of the anti-sliding piles. In general, they are often located in landslides or near existing buildings. If the upper soil is directly excavated to the bottom of the anti-sliding pile crown beam, the weight of the soil will be reduced, which is not good for the safety of the slope and the building in the landslide area and the area near the building. In this case, the original ground is usually used for direct excavation of bored piles after preliminary leveling, resulting in empty drilling. If the existing method is used to directly bundle the vertical main reinforcement 1 and the reinforcing hoop 2 of the steel cage at the same time, on the one hand, the wear of the wire rope is relatively serious, and there are safety hazards in the hoisting; secondly, for the bored piles with deeper empty drillings, after the steel cage is lowered, the spacing between the steel cage and the hole wall is small, and after the steel hole is lowered, the steel cage may be tilted in one direction due to its own weight, which makes it difficult to remove the wire rope in many cases. The large anti-slip pile steel cage hoisting system of the utility model solves the safety problem of using the steel cage stiffening hoop 2 as the lifting point for hoisting, solves the problem of deformation of the steel cage due to uneven force on the steel wire rope during hoisting, and solves the problem of difficulty in removing the steel wire rope in the case of empty drilling, thereby ensuring the safety of the hoisting process.

[0035] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A large anti-sliding pile reinforcement cage, comprising a plurality of vertical main bars and a plurality of reinforcing hoops; characterized in that: It also includes at least four hanging point assemblies symmetrically arranged along the circumference of the stiffening hoop; the hanging point assembly includes a hanging ring and a reinforcement piece; the two ends of the hanging ring are respectively welded and fixed to the two vertical main bars, and the bottom surface of the arched arc portion of the hanging ring is flush with the bottom surface of the stiffening hoop; the reinforcement piece is connected to the upper and lower ends of the stiffening hoop.

2. A large anti-slide pile reinforcement cage according to claim 1, characterized in that: The two ends of the lifting ring are fully welded and overlapped with the vertical main reinforcement, and the starting point of welding is the end point of the arc portion of the lifting ring.

3. The large anti-sliding pile reinforcement cage according to claim 1 is characterized in that: The reinforcement member comprises a plurality of short steel bar heads; one short steel bar head is welded to the upper end and the lower end of the reinforcing hoop respectively, and the short steel bar heads are also welded to the vertical main bars.

4. The large anti-sliding pile reinforcement cage according to claim 1 is characterized in that: The large anti-sliding pile reinforcement cage also includes a plurality of sonic detection tubes; the sonic detection tubes are arranged on the inner side of the reinforcing hoop.

5. The large anti-sliding pile reinforcement cage according to claim 1 is characterized in that: The large anti-sliding pile reinforcement cage also includes an inner support member, which is supported and connected to the inner side of the reinforcing hoop.

6. A large anti-sliding pile steel cage hoisting system, characterized in that: It comprises the large anti-slip pile steel cage as described in claim 1, and also comprises a main crane main hook, multiple main lifting steel wire ropes, a transverse lifting beam, a main crane auxiliary hook and a balancing lifting steel wire rope; one of the main lifting steel wire ropes passes around the transverse lifting beam suspended below the main hook of the main crane, and is connected to two symmetrical lifting point assemblies; the remaining main lifting steel wire ropes connect the main crane main hook and the remaining lifting point assemblies; a balancing lifting point is arranged on the vertical main reinforcement of the large anti-slip pile steel cage; the balancing lifting steel wire rope connects the balancing lifting point and the main crane auxiliary hook.

7. A large anti-slide pile reinforcement cage hoisting system according to claim 6, characterized in that: The hoisting system also includes an auxiliary hoisting wire rope and an auxiliary crane main hook; an auxiliary hoisting point is also arranged on the vertical main reinforcement of the large anti-sliding pile reinforcement cage; the auxiliary hoisting wire rope connects the auxiliary crane main hook and the auxiliary hoisting point.

8. A large anti-sliding pile reinforcement cage hoisting system according to claim 7, characterized in that: The suspension point assembly, the balance suspension point and the auxiliary suspension point are sequentially spaced and distributed along the length direction of the large anti-sliding pile reinforcement cage.

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